华中科技大学学报（自然科学版）2024，Vol.52Issue(1)：46-52,7.DOI:10.13245/j.hust.240457
"海上列车"静水及波浪中的水动力特性研究
Research on hydrodynamic characteristics of"sea train"in calm water and waves
摘要
Abstract
To investigate the motion characteristics and resistance performance of the new multi-vessel navigation concept"sea train"in waves,a coupling approach of potential and viscous flows based on functional decomposition model was developed.The Blunt Wigley ship model was selected,and 3 Blunt Wigley ship models were arranged in series with a longitudinal spacing of 0.1L to construct a multi-vessel system.The in-house coupling solver of potential and viscous flows HUST-SWENSE and the in-house structured dynamic overset grid code HUST-Overset were used to solve ship motions in waves.Comparing the resistance performance of single vessel with these of multi-vessel system in calm water,it is found that the drag reduction of the lead ship in the connected"sea train"is obvious,while the subsequent ships have different degrees of drag increases,and that of the ship at the rearmost position arrives the maximum.By comparison and analysis of motion responses,added resistance and different components of wave systems of single ship and multi-vessel system in waves,it is found that when r is more than 0.25,the motion characteristics and added resistance characteristics of the lead ship are almost the same as the single ship.In addition,the subsequent ships need to adjust the longitudinal distances between ships according to the specific sea conditions to achieve the purpose of drag reduction.关键词
海上列车/功能分解/势黏流耦合方法/减阻/动态重叠网格Key words
sea train/functional decomposition/coupling approach of potential and viscous flows/drag reduction/dynamic overset grid分类
交通工程引用本文复制引用
余嘉威,姚朝帮,覃燕,张志国.."海上列车"静水及波浪中的水动力特性研究[J].华中科技大学学报（自然科学版）,2024,52(1):46-52,7.基金项目
国家自然科学基金资助项目(52071148) （52071148）
国家自然科学基金"叶企孙"联合基金资助项目(U2141228). （U2141228）
